Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station PF1A-4 - show graphs
Comment: 145.250MHz https://aprsdro
Location: 50°57.16' N 6°57.83' E - locator JO30LW58PP - show map
1.8 km North bearing 8° from Köln-Innenstadt (Koeln-Innenstadt), North Rhine-Westphalia, Germany [?]
2.4 km Northeast bearing 24° from Köln (Koeln), Regierungsbezirk Köln, North Rhine-Westphalia, Germany
55.4 km South bearing 184° from Essen, North Rhine-Westphalia, Germany
Last position: 2025-11-28 20:22:08 UTC (8d 9h43m ago)
2025-11-28 21:22:08 CET local time at Köln-Innenstadt, Germany [?]
Altitude: 133 m
Course: 179°
Speed: 0 km/h
Device: Open Source: APRSdroid (app, Android)
Last path: PF1A-4>APDR16 via TCPIP*,qAC,T2GB
Positions stored: 295
Other SSIDs: PF1A-1 PF1A-11 PF1A-N PF1A-3
About this site
This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS